<!DOCTYPE html>

<!-- Proof of concept of running loleaflet.html in an iframe. Also
     shows how to, from outside the iframe, invoke Python scripting in
     the underlying LibreOffice instance that manipulates the document
     being edited.

     This demonstrates using the Python InsertText.py and Capitalise.py
     scripts from javascript across iframes.

     To test this, do 'make run', and then in your browser open the
     equivalent of
     http://snorken.local:9980/loleaflet/3304e9093/framed.doc.html if the
     browser is running on a different machine, or
     http://localhost:9980/loleaflet/3304e9093/framed.doc.html if running
     on the same machine.

-->

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Online Editor</title>

    <script>

      function post(msg) {
        window.frames[0].postMessage(JSON.stringify(msg), '*');
      }

      function insertText(text) {
        post({'MessageId': 'CallPythonScript',
              'SendTime': Date.now(),
              'ScriptFile': 'InsertText.py',
              'Function': 'InsertText',
              'Values': { 'text': {'type': 'string', 'value': text}}
            });
      }

      function capitalize() {
        post({'MessageId': 'CallPythonScript',
              'SendTime': Date.now(),
              'ScriptFile': 'Capitalise.py',
              'Function': 'capitalisePython',
              'Values': null
            });
      }

      function save() {
        post({'MessageId': 'Action_Save',
              'Values': { 'Notify': true, 'ExtendedData': 'CustomFlag=Custom Value;AnotherFlag=AnotherValue' }
            });
      }

      function closeDocument() {
        post({'MessageId': 'Action_Close',
              'Values': null
            });
      }

      function hide_commands(id) {
        post({'MessageId': 'Hide_Menu_Item',
              'Values': { 'id': id, }
            });
        post({'MessageId': 'Hide_Button',
              'Values': { 'id': id, }
            });
      }

      function show_commands(id) {
        post({'MessageId': 'Show_Menu_Item',
              'Values': { 'id': id, }
            });
        post({'MessageId': 'Show_Button',
              'Values': { 'id': id, }
            });
      }

      function disable_default_uiaction(action, disable) {
        post({'MessageId': 'Disable_Default_UIAction',
              'Values': { 'action': action, 'disable': disable }
            });
      }

      // This function is invoked when the iframe posts a message back.

      function receiveMessage(event) {
        console.log('==== framed.doc.html receiveMessage: ' + event.data);
        var msg = JSON.parse(event.data);
        if (!msg) {
          return;
        }
        if (msg.MessageId == 'App_LoadingStatus') {
          if (msg.Values) {
            if (msg.Values.Status == 'Document_Loaded') {
              window.frames[0].postMessage(JSON.stringify({'MessageId': 'Host_PostmessageReady'}), '*');
            }
          }
        } else if (msg.MessageId == 'Doc_ModifiedStatus') {
          if (msg.Values) {
            if (msg.Values.Modified == true) {
              document.getElementById("ModifiedStatus").innerHTML = "Modified";
            }
            else {
              document.getElementById("ModifiedStatus").innerHTML = "Saved";
            }
          }
        } else if (msg.MessageId == 'Action_Save_Resp') {
          if (msg.Values) {
            if (msg.Values.success == true) {
              document.getElementById("ModifiedStatus").innerHTML = "Saved";
            }
          }
        }
      }

      // 'main' code of this <script> block, run when page is being
      // rendered. Install the message listener.
      window.addEventListener("message", receiveMessage, false);

    </script>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>

  <body style="user-select: none;">

    <p>Note: Set net/frame_ancestors in loolwsd.xml to contain 'file:' (without the quotes, but with the colon), otherwise you will get CSP violation. And force reload, or clear caches, otherwise you might get served from the browser cache..</p>
    <form id="insert-text-form">
      Click <button onclick="insertText(document.forms['insert-text-form'].elements['source'].value); return false;">here</button> to insert the following text into the document:
      <textarea name="source" value="" rows="5" cols="50"></textarea>
    </form>

    <form id="insert-text-form">
      Click <button onclick="capitalize(); return false;">here</button> to capitalize selected text in the document.</br></br>
      <button onclick="save(); return false;">Save</button>
      <button onclick="closeDocument(); return false;">Close</button></br></br>
      <button onclick="hide_commands('save'); return false;">Hide Save Commands</button>
      <button onclick="show_commands('save'); return false;">Show Save Commands</button></br>
      <button onclick="hide_commands('print'); return false;">Hide Print Commands</button>
      <button onclick="show_commands('print'); return false;">Show Print Commands</button></br></br>
      <button onclick="disable_default_uiaction('UI_Save', true); return false;">Disable default save action</button></br>
      <button onclick="disable_default_uiaction('UI_Save', false); return false;">Enable default save action</button></br></br>
    </form>

    <p>Modified Status:
    <span id="ModifiedStatus">Saved</span>
    </p>

    <!-- The hostname and pathnames below are obviously specific to my
    personal environment and need to be changed appropriately. Also
    the hex string needs to be changed of course, to the right one as
    shown by 'make run'. -->

    <iframe src="http://localhost:9980/loleaflet/ef3c798/loleaflet.html?file_path=file:///home/ash/prj/lo/online/test/data/empty.odt&NotWOPIButIframe=true" height="1000" width="1000"></iframe>
  </body>
</html>
